[Funky_Fish14]

That sounds pretty good.

I find its not too big a deal to use a TDS pen (have two different ones) so inline TDS meter is not necessary for me (though I do have an inline pressure gauge cause I have a booster pump). I have an aquasafe unit. Works just fine, it came with 3 pre-filter canisters, an R/O canister, and a DI canister. I added a second R/O canister so I could increase the output on it and hooked up a booster pump. The Aquasafe units can be had for cheap (like 150?), replacement membranes and filters are easy to find and cheap, booster pump (which you probably wont need in the city, but I do since im on a well and run dual membranes) is around 100. No problems at all with my unit even with the high pressure from the booster pump.

Cheers,

Chris

P.S. There is a unit out there, maybe someone can chime in since I cant remember the name, but it has several pre-filter sections and a comes with R/O and DI cannister sections and has built in TDS meter and booster pump. It has a fairly high product/waste efficiency.